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Gasification Integrated with Small Chemical Pulp Mills for Fuel and Energy Production
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-4359-2232
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-7233-6916
King Abdulaziz University, Saudi Arabia.
State Environ. Protect. Key Lab. of Environmental Risk Assessment and Control on Chemical Process, ECUST, China.
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, p. 977-983Article in journal (Refereed) Published
Abstract [en]

Pulp mills without black liquor recovery cycle could play a major role in employing black liquor gasification (BLG) to produce transport fuels. In conventional chemical pulp mills, black liquor is burnt in recovery boilers to generate steam and electricity to meet energy demands. The inorganic chemicals are reused for the digestion process. However, the energy content and inorganic chemicals are not recovered in small scale pulp mills especially in the developing countries which do not employ recovery cycle. This study investigates the potential of synthetic natural gas (SNG) production by integrating BLG island with a reference pulp mill without chemical recovery cycle. The improvements in overall energy efficiency are evaluated using performance indicators such as biofuel production potential, integrated system’s efficiency, and energy ratios. The oxygen-blown circulating fluidized bed (CFB) gasification with direct causticization is integrated with reference pulp mill. The results showed considerable SNG production without external biomass import. However to compensate total electricity deficit, the electricity will be imported from the grid. There is a substantial CO2 abatement potential of combining CO2 capture using seloxol absorption, and CO2 mitigation from SNG by replacing gasoline. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2017. Vol. 142, p. 977-983
National Category
Energy Engineering
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URN: urn:nbn:se:mdh:diva-38732DOI: 10.1016/j.egypro.2017.12.156Scopus ID: 2-s2.0-85041531372OAI: oai:DiVA.org:mdh-38732DiVA, id: diva2:1186435
Available from: 2018-02-28 Created: 2018-02-28 Last updated: 2018-02-28Bibliographically approved

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Naqvi, MuhammadDahlquist, Erik

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